59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* Copyright 2024 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef TEST_WAIT_UNTIL_INTERNAL_H_
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#define TEST_WAIT_UNTIL_INTERNAL_H_
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#include <string>
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#include "absl/base/nullability.h"
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#include "absl/strings/string_view.h"
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#include "test/gmock.h"
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#include "test/gtest.h"
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namespace webrtc {
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namespace wait_until_internal {
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// Explains the match result of `matcher` against `value` to `listener`.
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// `value_name` is the name of the value to be used in the error message.
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// This is inspired by testing::ExplainMatchResult and
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// testing::internal::MatchPrintAndExplain.
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template <typename T, typename M>
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bool ExplainMatchResult(
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const M& matcher,
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const T& value,
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absl::Nonnull<::testing::StringMatchResultListener*> listener,
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absl::string_view value_name) {
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// SafeMatcherCast is required for matchers whose type does not match the
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// argument type.
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::testing::Matcher<const T&> safe_matcher =
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::testing::SafeMatcherCast<const T&>(matcher);
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auto* ss = listener->stream();
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*ss << "Value of: " << value_name << "\n";
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*ss << "Expected: ";
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safe_matcher.DescribeTo(ss);
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*ss << "\nActual: ";
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::testing::StringMatchResultListener inner_listener;
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if (::testing::ExplainMatchResult(safe_matcher, value, &inner_listener)) {
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return true;
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}
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*ss << ::testing::PrintToString(value);
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if (const std::string& inner_message = inner_listener.str();
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!inner_message.empty()) {
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*ss << ", " << inner_message;
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}
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return false;
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}
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} // namespace wait_until_internal
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} // namespace webrtc
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#endif // TEST_WAIT_UNTIL_INTERNAL_H_
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